Wrapping-machine.



P. F. MURPHY.

WMPPING MACHINE. APPLICATIUN FILED AUG-4. I9l3.

Patented vy 2l, 11918.

5 SHEETS-SHEET l.

Patnted y 2l, 19118. f 5 SHEETS-SHEET 2.

om 9 .I r..I Kw4 HHM PCA Dum U D Mau NF FD .ww DIR'M Wbb L DI DI .A

min@ es@ es Ww Wm P. F. MURPHY. WRAPPING MACHINE.

APPucArIoN man Anm-1.19m.

Paten May 21,1918.

5 SHEETS-SHEET 3 P. F. MURPHY.

WRAPPING MACHINE. APPucATloN man AuG.4.19r3.

Patented May 21,1918.

5 SHEETS-SHEET www Ew 'mm P. F. MURPHY.

WRAPPING MACHINE. APPLICATION man Aus.4.191a.

Walt m eased .www mw Etta-poneys.

imm" i i. iniiiiiit .im .t twill PETER F. MURPHY', MILWAUKEE, WXSCONSIEN'.

haceros.

To all 'whom t may-concern.:

Be it known that l, PETER F. MURPHY, a

. citizen of the United States, residing at fication, reference being had to the accompanyingdrawing, forming a part thereof.

rlhis inventionrelates more particularly vtomachines for wrapping articles or sub- `stances of varying size and shape and of varying solidity or. compressibility, such as bread.

Its main objects areto facilitate wrappingy such articles or substances; to fold the ,wrapper smoothly over the tops, sides and ends of the packages so that the edges of the wrappers will all be lapped on. th@ bottoms or one side of. the packages; to avoid unnecessary handling and consequent contamination of the articles or substances to be wrapped; to tightly inclose and seal the articles or substances wrapped; and generally to simplify and improve the construction and operation of machines of this class, particularly for the specific purpose above stated.

lt consists in the construction, arrangement and combination fof parts as hereinafter particularly described and pointed out in the following claims. y

l In the accompanying drawing like characters designate the'same parts in the several figures.. i

Figure 1 is a vertical longitudinal section onthe line' 1-1', Figs. 5 and 6, of a wrapping machine embodying the invention and designedgparticularly forl wrapping bread, the outer vends of the feed and discharge conveyers being broken away and shown below their inner ends; Fig. 2- isa plan view ofthe machine; Fig. 3 isa cross section on the line 3-3, Fig. 1, showing one of the adjustable vwrapper supports, and the adjustable back stop plate with associated parts; Fig. @is a side'elevation' ofthe ma- "chine as viewed from the left relative .to

Figs. 5 and 6; Fig. 5 is an end elevation of themachine as viewed from the left relative to Figs. 1 and 2; Fig." (i is a vertical cross section lof .the machine' on. the line 6-6, Figs.l 1 and 2; Figs? to 13inclusive are `detai`l views on an enlarged scale illustrating the operation of the folding mechspecification or Letters ratent.

.. Pine-Machine.

ratentea nay ai, iai.

Application filed August 4, 159113. Serial No. 782,77.

anism and the peculiarmanner of folding lthe wrapper, Fig. 7 being a side elevation Iof the plunger and end folders with a loaf of bread and a wrapper just beforethe folding of the .wrapperby'the end folders, and 60v Fig. 9 showing the end folders turned into the. vertical positions `which they occupy when the loaf is carried lupwardly between them by the plunger.

Although with little or nochange the mal chine may be used or adapted "to be used for/wrapping other articles, it is shownv and will be described as it is constructed 'and operates for wrapping bread.`

The machine comprises generally wrap 70 i per folding mechanism, a ,conveyer for feeding the loaves to be wrapped to the folding mechanism, a .discharge conveyer upon which the Wrapped loaves are delivered lfrom the folding mechanism", wrapper supporting, guiding, feeding and cutting devices, and means for lsealing the `wrappers on the bottoms of the loaves.

rllhe folding mechanism consists of vertically disposed parallel side folders and l guides l1 and 2, end foldersv 3, a vertically reciprocating plunger 4, 'movable up and down between the folders, a reciprocating side tucker- 5, .located above and movable transversely to the side folders, end tuckers 6, and a reciprocating pusher 7, located above the side tucker and movable parallel therewith'. and transversely to the side folders.4

- The side folder and guide 1,- comprising a plain smooth-facedmetal plate, isl fastened stationarily at its upper'edge to the top'plate 8 of the machine frame, and the side folder and guide 2, comprising a similar plate, is i adjustably fastened' to the frame parallel 95y with the folder and guide 1, by bolts 9, passing through vlongitudinal slots 10 in said `plate 8, so thatthe plate 2 may be shifted toward and fromfthe vopposing staf tionary plate 1 for wrapping loaves of vdif- `1 ()0. ferent widths".

'llo facilitate its adjustment the plate 2 isprovided, as shownin Figs. 1

`and 5, with a handle 11,. 'Foguide-the loaves, which vary more or less in shape,

` size and solidltyV or. compreibility, without mutilation or injury between. the folders and, to evenly distribute 'the pressure andpull uponl the wrappers carried with the loaves by the plunger upwardly between thefolders, the-'side folders and guides are 110 provided withoutwardly yielding sections 12, which are hinged or pivoted adjacent to their upper edges to the upper fixed sections of the folders and guides adjacent to their lower edges. The sections 12I` are formed along `their upper and lower edges with outwardly projecting flanges, the lower flanges being rounded or beveled to avoid sharp corners, and the upper lianges serving as stops to limit the outward movement of the sections, which normally hang in the .planes ofthe upper xed sections, as shown in Fig. 1.

The pivoted end folders 3 each consist of ahead 13 and detachable plate 14, provided as shown in Fig. 7 with lugs 15 and 16, fitting openings or recesses in the head, and with a threaded stud 17 and a thumb nut 18 for detachably fastening it to the head.

,Each head 13 is formed or provided on the outer side with arms 19 which are pivotally and slidably mounted on rods 20 -passing transversely through longitudinal slots 21 in the upper fixed sections of the side folders and guides 1 and 2. The heads 13 are formed or provided with counterweights 22,

which tend to holdthe end'folders in the positions in which they are shown in Figs. 6 and 7 against stops 23 projecting inwardly from one of the side folders. The pivot rods 20 are fastened at one end in blocks or heads 24, slidably mounted on'bracket bearings 25 on the outer side of the upper fixed section of the side folder 1, as shown in Figs. 1 and 6. These blocks or heads are `movable toward andl from each other, and

are connected vby a right and -left adjusting screw 26, by which the end folders may be simultaneously Ashifted toward-or from each other for wrapping' loaves of different lengths.

he plunger 4 is removably mounted on the upper end of a reciprocating bar 27, which' is guided invertical-ways 28, attached .as shown in Fi 1 and 6, tocross pieces of the machine rame. The plunger is moved up and down between the folders 'by a lever 29 connected between its ends as width to carry a single load, is attached tol the frame substantially at the level of the plunger in Tits initial position, and on the side of this shelf next to the path of the plunger, a vertically reciprocating gate 35 is guided inA ways 36 on a cross member of the frame, as shown in Figs. 1 and 6. The gate is lifted into operative position above the shelf 34 by springs 37, its upward movement being limited by stops 38 engaging said cross member. In its downward movement'the plunger 4, by engagement with a lugI 39, carries the gate downward with it into inoperative position below said shelf, as shown in Fig. 1.

To prevent the loaf resting on the shelf 34 from being carried upward out of place by the upward movement of the loaf on the plunger and the gate 35, which moves upwardly with the plunger,J a vertically movable guard 40 extends over the shelf 34 and is guided by downwardly projecting parallel arms 41 at its ends in bearings on the frame on opposite sides of the path of the plunger. The guard is moved downwardly into operative position to confine a loaf in place on the shelf 34, when the plunger is lifted with a loaf, by springs. 42 connecting the arms 41 with a cross piece of the frame, and it is moved upwardly into inoperative position when the plunger descends to its inltial position so as to permit the free passage of a loaf from -the shelf to the plunger, 'by levers `43 fulcrumed between their ends on the guideways 36 or other stationary parts of the frame and connected at their outer ends by pins and slots with the arms 41 ofr the guard, as shown in Fig. 6.

The inwardly projecting arms of the levers 43# are engaged by pins or lugs 44 on the gate, so that when the gate is carried with the plunger downward into its 'normal position below the shelf 34, the guard is elevated to permit the free passage of a loaf underneath it.

The side tucker 5, consisting of a flat plate extending across an opening in the top or bed plate 8 and guided in parallel ways 45 at the sides of said opening, is connected by a rod 46 with the upper end of a lever 47, which is fulcrumed between its ends on a cross rod 48. and is provided between its fulcrum and its upper end with a roller 49 in the path of acam 50 on the shaft'32. A spring 51 connecting the lower end of the lever 47 with the frame, withdraws the tucker l5- after its advarce by the cam 50,

its backward movement` being limited by'an il adjustable 'stop screw 52, with which the up- Y per armv of the lever 47 engages.

The end tuckers 6, which are located just above and are movable between and lengthwise of the side folders and guides 1 and 2,"

are detachably fastened to the inner ends of levers 53, which are vertically fulcrumed between their ends to the under side of the 4bed or top plate 8 on opposite sides of the opening therein, and are provided at their outer ends with rollers 54 engaging peripheral grooves of cams 55 on the shaft 32, as shown in Figs 2, 5 and 6. The bed or top plate 8 on which the end tuckers 6 rest and are guided, is lformed withcurved slots, as indicated by dotted lines on Fig. 2, andas shown in Fig. 6, for the passage there through 'of upwardly projecting bosses to4 which the tuckers are fastened at the inner endsfof said levers.

The pusher 7 consists ofta plate detachably'fastened to a head 56 on the inner end of a sliding rod 57, having bearings on the frame and connected with the upper -end of a lever 58 fulcrumed on the rod 48. This lever is provided between its fulcrum and upper end with a roller 59 inthe path of a cam-60 on the shaft 32, said cam being arranged to advance the pusher from its initial or `normal position above and approxrally mounted on a cross at its. .ends in standards 68, extending up.

` sealing plate 63. The

mately inline with the side folder and guide 2 acrossthe space between it and the op posing side fo der and guide 1. Avspring 61 connecting the lower end of said lever 58 with a part ofv the frame, acts in opposition tosaid cam to retract the pusher to its'initial position, its backward movement' being adjustably limited by a stop screw 62 threaded in a cross piece. of the frame.

A metal plate 63 for heating and sealing the wrappers on the bottoms of the loaves, is mounted on the frame of the machinenext to the stationary side folder and guide 1, approximately in the plane of the bed or top plate 8 and of the side tucker 5. This plate is heated to the required temperature` for sealing the wrappers/for which paraffined or waxed paper is usedby an electric heater 64, attached to the under side of the plate. A

A vertically reciprocating discharge gate a 65, which in its normal position, as shown 40 in Fig. 1, constitutes lan upward continuationrv of the side folder and guide 1, is attached to a rocker frame 66. which is pivotshaft 67, supported wardly from the b'ed or top plate 8. An arm 69 extending downwardly from the outer pivoted end of the frame-66 is connected by an Aadjustable link 70 with the 'upper endof a lever 71, fulcrumed between its ends on the rod48 and provided with a shaft 32. said cam operatingto intermittently lift the gate 65 just before each advance movement of the pusher 7.' A spring '74, connecting the lower end of said lever 71 with theframe, holdsthe `roller 72 in engagement with the cam 7 3rand operates to return the gate 65 to its normal position after it has been lifted by said cam. n

I An"upwardly yielding presser plate 75, is carried by the rocker frame 66 plate 75 is provided with upwardly projecting stems 76 passing loosely through sleeves 7 7 which aregthreaded and adjustable vertically in the frame folders and over `the 66. S rings 78 are interposed between the plateI 5 and the lower ends of the sleeves stems and bearing normally against the upper ends of saidsleeves. By means of the sleeves 77 the distance of the plate 7 5in its normal position from the plate 63 may be adjusted for loaves of different heights, and by means of the sleeves 77 and the nuts 79 the tension of the springs 78 is adjusted to exert the desired pressure upon `the loaves for sealing their wrappers. A 4

Parallel end plates or guides 80, are supported above and transversely to the side guides 1 and2, by brackets 81, which are attachedto the blocksl or heads 24 and adjustable. therewith toward and from each other by the screw 26.

As shown in Figs. 1- and 4, the feed conveyer consists of an endless belt 82, mounted on rollers 83 and 84 and supported on the upper side, which travels toward the shelf 34, on a plate 85,'attached to the under f side of longitudinal angle bars 86 in the plane of the shelf 34. The discharge conveyer, which is located directly above the feed conveyer, consistslike the feed conrav ee l

and 4, -by a link belt 92 connecting a cone n sprocket wheel 93 on the shaft of the roller 83, with a sprocket wheel 94 on the cam shaft 32. The discharge belt 87 is driven, as

shown in Figs. 2 and 4, by a crossed belt 95 connecting aV grooved pulley 9 6 on the shaft of the roller 88 with a grooved pulley 97 on the shaft of the roller 83.

' For bringing the loaves into alinement endwise on the belt 82 and depositing them in proper position on the shelf 34 and plunger 4, 'the feed conveyer lis provided with longitudinal guides 98, which arel attached at their outer ends to the bars 86 and at their inner ends to posts 99 mounted on a right and left vscrewshaft 100 and adjustable simultaneously toward or from each other trans-V versely to said belt, as shownin Figsgl and 6. This screw shaft is supported and 'confined endwise in bearings provided therefor in a cross 'member ofthe frame below thel Y shelfe34, and is provided at one` end as,V

with a hand wheel or v shown in Fig 6, head .for turning it. l A

Onthe opposite side of the path of the plunger from the shelf 34, a back stop and i and adjustable lengthwise of the bars 86, as shown in Figs. 1 and 3. The cross bar 103 is secured in adjusted position on the bars 86 by a clamping bar 104, which is connected with the bar 103 b a screw 105. The pivoted stop and guidy connected with the cross bar 103 by a slotte arm or bracket 106 attached to said late, and a'thumb screw 107 assing throu slot in said arm or bracket and threa ed in the cross bar, so that the inclination of the stopand guide plate can be varied according to the shape, nature and condition of the loaves to be wrapped.

jWrapper supporting plates 108' and 109 are mounted on the arch 101 and-a similar arch 110, attached to the bars 86 on opposite sides of the ath of the plunger and below' and paralle with the side folders and guides 1 and 2. The plate 109 is preferably formed on its inner side, as shown in Figs. 1 and 6, with a' downwardly extending and outwardly curved or inclined fiange 111, for properly ldirecting a loaf carried by the plunger between the side folders and guides.

f These wrapper supporting plates arcadjustable lengthwise of the side folders and guides and are secured, as sliown inFig. 3, to the arches 101 and 110 by screws passing downwardly from the plates through slots in the arches and provided with wing nuts 112, and with springs between the arches and the nuts.

For severint the wrapping paper into wrappers of e tothe sidefolders and guides 1 and 2, with a cutter consisting of af'bar 113, to which a relatively stationary -or 'fixed blade 114 is adjustably fastened, and of a bar 115, piv- Voted adjacent to one end to the bar 113 and provided with -a blade 116, arranged to cooperate with the blade 114 in the manner of shears, as shown in 1 and'6. The bar 113 is formed or provided, as shown in Figs. 1, 2 and 6, with transverse racks 117, guided by transverse ways 1,18 on the frame. The

cutter is. adjusted bodily toward and from the path of the plunger 4 tovary the length of the wrappers according to .derent lengthsof loaves bv means of a longitudinal shaft 119, miea with pinions 12o mesh- "ing with t e rack 117. The shaft 119 is provided at one end lwith'a crank arm 121, having a handle and locking pin 122, working with an index plate 123, as shown 1n- Figs. 1, 2 and 5. For operating the movabl blade 116 of the cutter, the pvoted bar 115 ety is provided at its outer end -with aV curvedarm 124 in the path o f a projection 125 on one of the cams 55, as shown in Figs.1 and 5. Thearm 124 is extended outwardly be' provide. a handle foithe The 'wrapper supporting. plates 108 e plate 101 is adjustabl i the required length, the machine 'is provided on one side transversely' mounting, cente detachab .and

109l are connected at one end, as shown in Figs. 1, 3 and 6, 4with a rod 126, which is connected at the ends by brackets 127 with the cutter bar,113, so that said plates are adf'ustable with the cutter lengthwise of the si e folders and guides, and the adjustment of the 1plate 108 transversely to said folders and lengthwise of the cutter is permitted.

For feedingl wrapping paper from a rollv to the folding mechanism, the machine is provided on one side, as shown in Figs. 2, 4, 5 and 6, with a pair of feed rollers 128 and 129, which operate intermittently on the paper, and with a pair of constantly operating slack rollers 130 and 131 for drawing the paper from the roll preliminaril to its intermittent advance by the feed rol ers. The roller 129 is mounted above the A. roller 128 in arms 132 on a rocker shaft 133,

and is movable vertically intoand out of operative position relative to the roller 128, which is constantly rotatedrwhen the machine isin operation. The shaft 133 is rovided at one end with an arm 134, an is rocked to properly time the feed of the wrapping paper by a cam 135 mounted on the shaft 32 and working with a wiperv136 with which the arm v134 is provided, and which is adjustable in said arm parallel with the shaft 133 by means of -a nut 137. When the ing` to the length of the loaves to be wrapped1 the length of the wrappers being determined bly the adjustment of t e cutter which severs t e paper, as hereinbefore explained, and

by the adjustment of the wiper so that the will project to the same extent over bot ends ofthe loaves. A roll of paper from which the wrappers are made, is mounted on a reel below and parallel with the feed roller 128. and above and parallel with the slack rollers and 131. Thereel consists of a -shaft 139, removably mounted in brackets on the frame, and provided with conical collars 141, which are removable from and adjustable lengthwise on vsaid shaft for and holding the roll in place thereon. e slack roller 130, having bearings in the brackets 140, ismade removable so that a roller of diiierent size, ac-

, cordngto the length of the.` wra pers re-` uired, may be .easily substitu a short shaft 142, with which it is It is riven by y coupled, and whlch is rovided witha sprocket wheel 143 connected v a link orchain-belt, asindicated by dotted lines in Figs. 4 and 5, with a sprocket wheel 144 on around the roller 130 into placebetween the upwardly over an inclined guide plate l146 between the feed rollers128 and 129. The" upper edge of this lplategis rolled around or mesme the Shaft of there@ 1011er '12s.. The alla.'

nals of the upper roller 131, whichvrests upon and presses the paper against the lower driven roller 130,Y are uided in vertically elongated openings 145 inthe brackets 140, the upper ends of these lopenings being .oiset vfor holding the roller temporarily in an='ele vated posltion to vi'ralcilitate changing the lower roller for one of a dierent size, and for passing-the end of a new'roll of paper feed rollers 128. and 129.

From the roller 130 the paper is directed otherwise fastened toa rod. 147,l carried by brackets on the machine frame parallel with the feed'rollers. The rod'147 is fastened and held against turning in its supporting brackets by one o r more set screws 148, by means of which the guidegplate 146 mayv be adjusted angular-ly and set at any desired insummon. The plate 14e isprovided with end gages 149, which aresecured thereto by clamping plates 150 and thumb screws' 151,

passing through longitudinal slots in the guide plate, so that either of the gages may beadjusted. lengthwise of the guide plate for directing paper of, different wldthsin proper position tothe folding mechanism.`

yeo

From the feed .rollers 128 and 129 the' wrapping paper is guided between the blades 114 and 116 of the cutter and upon vthe supports 108 and 109 by a plate 152 fastened at .the ends to the cutter bar y113 a short distance below and parallel with the blade 114-, and by a plate 153 fastened a-t its ends tothe `frame of the machine and overlapping at its inner edge the outer edge of the plateV 152, as'shown in Figs. 1 and'6.

' For driving the machine, anelectric motor 154 is shown, a pulley 155 onthe motor shaft being connected by a belt with a pulley 156 on the shaft of thefeed roller 128, which in the present case is the main driving shaft of the machine, and is connected with the cam shaft 32 by bevel gears 157 and 158.

The gear 158 may be formed as shown, withthe cam 135. A number of loaves'placed side by side on the feed belt 8 2 being required to ad'ord 'are designated by the numeral 165.

. adapted to ride upon and over the tops of the loaves when they' are fed side by side in a-n unbroken row to the plunger 4. At one end the shaft 159is provided with an arm 162, adapted to open an electric switch 163,

controlling the supply. of current to 'the motor 154 whenever the shoe 161 is left unsupported by a loaf of bread.

The loaves of bread or articles to be lwrapped are designated by the numeral164, while the wrappers or wrapped packages In the `operation of the machine for wrapping bread, the` proper adjustments for wrapping loaves of a given size having been made and a roll of paper of,.the proper width for wrapping s 'uch loaves having been placed in the .machine on the reel shaft 139 and the end of the paper carried down-y 131, thence upwardly vover the guide plate wardly between the slack rollers 130 and 146 between the feed rollers 128 and 129 and over guide plates 152 and 153, into position on the wrapper supports 108 and 109, the operator places the loaves to be wrapped side by side on the feed belt v82. 'llhe constantly travelingbelt 82 brings the loaves 'closely together side by side, and pushes them forwardi across the shelf 34 upon the plunger 4, where the front loaf is arrested4 1n proper position by the stop and guide plate 101.' As the loaves are advancedthey are brought into alinement and into proper position lengthwise b the converging guides., -98,`for delivery to t e pusher. With each revolution of the shaft 32, the plunger with a loaf thereon is carried upwardly between the folders and guides and returned to its initial positionto receive another loaf, by

the eccentric31. 1n the upward movement of the plunger with a loaf thereon, a wrapper is taken from the supports 108 and .109

andcarried upwardly between the side fold'- ers and guides v1 and 2, which fold the wrapper lengthwise upon the top and sides of the loaf, as shown in Figs. 7 and 8, the out-` wardly yielding sections 12 of the folders evenly distributing the pressure against the sides' of the loaf andthe pull on the sides of the wrapper; Y v

` As the top 4of the loaf is moved upwardly into contact with the inwardly projecting ends of the end folders 3, said folders are Y turned from the position in which they are shown in Fig. 7 to that in which they are shown in-lFig. 9, thereby laying broad end folds with underlying triangular corner l folds against the ends of the` loaf, as shown in Figs. 9 and 10, the downwardly turned sides of the Wrapper being confined during this operation, as shown in Figs. 7 and `8, by the upper stationary sections of the side [folders and 1 and 2, so that as the broad overlying end folds are pressed bv the end lfolders against the ends of the loaf,i

loaf, as shown by Figs. 11 and 13. As the the surplus paper is turned inwardly'and formed into underlying triangular corner end tuekers 6 are withdrawn, the side tucker 5 is advanced by thejoint action of the le-i ver 47 and cam 50, and folds the depending edge or flap of the side fold next to the pusher 7 underneath and against the bottom of the loaf and the infolded end flaps, as shown by Figs. 12 and 13. The gate 65 is then lifted by the cam 73 and the lever 71 connected with the'swinging frame 66,`

and the pusher 7 is advanced by the cam 60 and the lever 58, thereby thrusting the loaf between the end guides 80 upon the plate 63. The side tucker 5 and the pusher 7 are withdrawn to their initial positions, as shown in Fig. 1, vby the springs 51 and 61. Asthe loaf is -thrust by the pusher 7 upon the plate 63, the depending edge-or Hap of the side fold next to said plate is turned Aback by the edge of said plate against the bottom of the loaf over the bottomv folds previously formed by the end and side tuck-v ers, thereby' closing the package and lapping all the ed es of the wrapper on the bottom of the loa as shown by Fig. 13.

After the wrapped loaf has been thus deposited by the pusher on the plate 63, which is kept at vthe required temperature by theheater 64, the gate 65 is returned to its original position and the presser plate is moved downward against the top of the loaf', as-shown in Figjl, by the retracting spring 74. The plate 75 yieldingly pressing and holding the bottom of the package against the hot plate 63, vcauses the lapped edgesor folds` of the paraiined or waxed wrapper on the bottom of the loaf to stick together, thereby effectively sealing the package.

' The presser plate 75 is preferably made, 'as shown in Fig. 1, of suficient width 4to act at the same time on two single loaves, or a double loaf.

` The wrapped and sealed loaves are thrust by the repeated action of the pusher 7,

from the hot plate 63, upon the dischar e belt 87, from which they are removed y the operator.

The bread to be wrapped is ordinarily taken by the operator. from a truck or portable rack such as are used in bakeries, on

which it is placed as it comes from the oven and upon which the wrapped loavesfare re-v placed as they are taken .from themachine.

The feed and discharge conveyers bein located one below the other and near eacli other, enable a single operator to' easily supply the machine with the bread to be wrapped and to remove the wrapped loave therefrom. k

I With the initial upward movement of the plunger 4, the gate l35 is moved upwardly and the guard 40y is moved downwardly, so as to prevent the displacement of the' loaf on the-shelf 34 by the -upward movement of the loaf on the plunger, the

row of loaves on the feed belt 82 being held back by the gate and by the loaf on the shelf till the plunger and the gate return to their initial positions.

As the plunger 4 passes below the wrapper supports 108 and 109 onl its return to its initial position to receive another loaf, the wiper 136 drops in to the recess 138 of cam 135, thereby permitting the upper feed roller 129 to descend and. carry the paper -into contact with the rotatingroller 128. A

suliicient length of paper for a wrapper is thus advanced into proper position on the supports 108 and 109, whereupon the high part of the cam 135 at the end of the recess 138, engaging with the wiper 136 as shown in Fig. 4, lifts the roller 129 away from the roller 128, arresting the further advance of the paper. The cam projection 125 then lengages with the arm 124 of the pivoted cutter bar 115, swinging the` blade 116 upwardly across the edgeof -tlnJ sta tionary blade 114 and cutting a wrappeil of the length required from the strip of paper held between the stationary blade 114 and the guide platel 152 below it.

- While' the feed rollers 128 vand 129 are separated and inoperative, the rollers 130 and 131 continue to operate, drawing paper from the roll above them on the'reel 139, so that enough paper.` is unwound from the roll for a wrapper before it is advanced by the feed rollers 128 and 129 to the folding mechanism.

When the machine is run at a slow or moderate speed, and paper of sufiicient strength is used, the rollers 130 and 131 may be dispensed with, and the paper fed directly from the roll tothe folding mechan ism bythe rollers 128 and 129.

Other mechanism or devices may be used for feeding wrappers to the machine either from a stack or a roll.

If wider loaves are to be Wrapped, the machine is adjusted therefor as follows: The side folder and guide-2fis moved the required distance from the stationary folder and guide 1, the screws 9 being loosened to permit them to be shifted in the .slots 10, and then tightened after the adjustment 'incarna .t

has been properly made.' The plates 14 of the end folders are replaced by wider plates corresponding with the increased distance between the side folders and guides 1 and 2.

The back stop plate and guide 101 with the wrapper support 108, is moved a corresponding distance away from the shelf 34 and wrapper support 109, thescrew 105 being loosened to permit the cross bar 103 `with, the arch 102 to be shifted on and lengthwise of the bars 86. Illhestop screws V52 and 62 are set to permita further-outward movement of the side tucker 5 and pusher 7, and to arrest them in their initial or normal positions in proper relation to the side folder f :1d guide 2.- ff the increase in the width of' the loaves is considerable, it may be necessary or desirable to provide the machine with a wider plunger 4,` and with wider end tuckers 6, and it may be necesf sary or desirable to increase the speed of the feedy belt. 85 by shifting the link or chain belt 92 to a part or section of the cone sprocket wheel 93 ofsmaller diameter. For

wider loaves, wider wrapping paper is'u'sed, and one or both ofthe conical collars 141 on the reel shaft 139, and one or both of the end gages 149 on the guide plate 146, must be correspondingly adjuste '1f longer loaves. are to be wrapped, the machine 1s adjusted therefor as follows:

The' inner ends of the guides -98 are set farther apart by the adjusting screw 100.

rllhe end folders 3 with the end guides 80v are setv correspondingly farther apart by the adjusting screw 26. A wider pusher plate 7, .corresponding with the increased distance between the end guides 80, is attached to the head 56. The wiper 136 is set toward the arm 134, so that the feed roller 129 will drop into operative position vsooner and continue in operation longer, to increase thel length of the wrapper. The.

cutter is moved away from thepat'h of the plunger by means of the crank arm..121 and set in such a position that the wrapper will project the same distance from each' end of the loaf. lWhen slack rollers are used, a roller of larger diameter is substituted for the lower roller 130 to.. increase the slack in lthe paper' preparatory to the operation thereon of the feed rollers, according to `the Iincreased length of the wrappers.'

i For wrapping loaves of greater or less depth or height, the only `ad]ustment required is to raise or lower the presser plate which is e'ected by screwing the sleeves 77 up or down in the frame 66.

Various changes in details of construction and arrangement'of parts ofthe machine may be made without departin from the principle .of the' invention as de following claims.

1'. 1n a wrapping machine the. combina- ,the pivots of the end folders,

ed in the f folders; l means for 'feedin tion of'opposingparallel side folders andguldes, a 'reciprocating plunger movable between said folders and guides, and end folders pivoted between and .transversely 2.In a wrapping machine the combination of opposing parallel sidefolders and guldes, a' reciprocating plunger movable between said folders and guides, end folders .pivotedv betweeny and transversely to Y' said side folders" and guides, and normally pro- Jecting at their inner ends into the path of -the article to be wrapped, the side folders beyond and guides extending at the ends means for feeding the articles to. be wrapped'to'the plunger'one' at a time, and means for feed- 'ing wrappers between the articles on the plun er and the side folders-and guides.

'rsv

3. n a wrapping machine the combination of opposing parallel side folders and guides, a reciprocating'plunger movable between said folders and guides, end folders pivoted between and transversely to said sidef folders and guides and normally projecting at their inner ends into'the path of an article to be wrapped as it is thrust by the plunger with a wrapper between said side folders and guides, the side folders and Vguidesextending at theire'nds beyond the pivots. of the end folders; means for feeding wrappers between the plunger in its mitial position and. the side folders and guides, a conveyer arrangedtransversely tothe path of the plunger and adapted to feed the articles to be wrapped thereto a gate movable adjacent `to the plunger across the path of the articles .fed thereto, and means for movin said gate into and out of operativev position as the plunger is,advanced i from and returnedv to its initial position,

the plunger in its advance being movable" independentlyA of and beyond the gate.

ofopposing para] l side folders and guides, a reclprocating plunger movable between said folders and guidesend folderspivoted between and transversely to said side folders andguides-and normally projecting at'their inner endsv into the path of an article to be i wrapped as it is thrust by the plunger with..v

a wrapper between said side foldersA and 4. In a wrappinlg machine the combination guides, the side folders and guides extending at the ends beyond the pivots lof the end wrappers between the plunger in its initial position and the side folders and guides, a conveyer arranged transversely to the path of the pluntion with folding mechanism comprising a ger and adapted to feed the articles tolbe wrapped thereto, a guard movable toward and from the conveyer opposite the article nextito thatV on the plunger, and means for moving said guard into operative position .toward the conveyer when the plunger isadvaneed from its initial position.

5. In a wrapping machine the combinareciproeating plunger, `of feeding mechanism comprising an endless traveling belt movable on the upper side, which isl located approximately in the plane of the plunger in its initial positiontoward and transversely to the path of the plunger, and longitudinal guides located above and adjacent to each `side of the belt and `converging; toward the path of the plunger, said guides being adj ustable toward andl from each other at their converging ends.

6. In a wrapping ymaehinethe combina- `tion with wrapping: mechanism for completely wrapping an article, of'feed and discharge conduits located on the same side of the machine in dierent planes, one above the other, means for moving articles-to be wrapped in the feed conduit toward the wrapping mechanism, means for transferring the articles from the feed conduit to the` wrapping mechanism, means for delivering the completely wrapped articles from the wrapping mechanism into the discharge conduit,'and gates to the feed and the discharge conduits at the ends nearest the path' of travel of the plunger.

7. In a wrapplng machine the combination vof feeding `and discharge conveyers and mechanism for completely wrapping an article, said mechanism including a vertically reciprocating plunger and said conveyors being arranged at the same side of said mechanism, one in a lower plane than the other and transversely to the pathof the plunger at the limits of its movement and movable respectively toward and from the path of the plunger, the discharge conveyer 'receiving the completely wrapped articles' from said mechanism, and gates at the ends of the conveyers nearest the path of travel of the plunger. i

8. In a wrapping machine the -combinatie-'n with wrapping mechanism comprising ver- .the

:ci rocatin macros' with wrapping mechanism comprising parallel side folders and guides and a reciprocating plunger movable between said folders and guides, of a heating plate arranged at one side of, and transversely to the path of plunger at its delivery end, means for heatlng said plate, means for transferring wrapped articlesfrom the plunger to sai plate, and a `reciprocating presser movable toward and from said plate and adapted'to press the .wrapped articles against the same as` they are delivered thereon.

10. In a wrapping machine the combination with wrapping mechanism comprising parallel side folders and guides and a reciproeatin plunger movable between said folders andg guides, of a heating plate arranged at one" side of and l'transversely to the path of the plunger at its delivery end, means for heating said plate, a reciprocating pusher movable across the path of the plunger toward and-from the heating plate, and a yieldingly reciprocating presser movable toward and from said plate transversely to the movement of the pusher.

11. In awrapping machine the combina-v tion Vwith wrapping mechanism comprising parallel folders and guides and a reciprocating plunger movable between said folders and guides, of a reciprocating. discharge pusher movable transversely to said folders and guides across the space between them, and a reciprocating gate movable transversely to the movement of the pusher into and out of the path of the wrapped articles as they are removed from the path of the plunger by the pusher, said pusher and gate standing in their normal positions approximately in the planes of said folders and guides and forming continuations thereof.

12. In a wrapping machine the combination of parallel side folders and guides, a replunger movable between sai .fo ders an guides, end folders pivoted between and transversely to the side folders and guides and normally projecting at their inner ends into the path of thearticle to be wrapped on the lunger, the side folders. and guides extendlng at the ends beyond the pivots of the end folders, reciprocating end tuckers movable toward and from eachr other lengthwise of the side folders and guides and transversely to the path of the plunger, a reciprocating side tueker movable crosswise of the side fo ders and guides and transversely to the path of the plunger and means for operating said tuckers in proper sequence.

'hacerca 13. ln a wrapping machine the combination of parallel side folders and guides, a reciprocating plunger movable between said folders and guides, end folders pivoted between and transversely to the side folders and guides and tending toproject at their inner ends into the path of an article on the plunger, end guides located above and transversely to the side folders and guides, areciprocating pusher movable between the end guides transversely to the side folders and guides, a gate movable transversely to the movement of the pusher into and o-ut of its path, said pusher and gate standing in their normal positions approximately in the planes ofthe side folders and guides and forming continuations thereof, end tuckers movable toward and from each other lengthwise of the side folders and guides and between them land the end guides, a reciprocating side tuckerl movable parallel with and close to the plane of the end tuckers transversely to and between the pusher and one side folder and guide, and means for operating said tuckers, gate and pusher in I proper sequence.

14. ln a wrapping machine the combination of a vertically reciprocating plunger, feed and discharge conveyers arranged on the same side of the machine and movable in opposite directions toward and from and transversely to the path of the plunger, one conveyer being located in 'a plane above that of the other, folding mechanism coperating with the plunger to completely fold the wrappers on packages as they are transferred from the feed to the discharge conveyer, and gates at the ends of the conveyers nearest the path of travel of the plunger.

15. 1n a wrapping machine the combination of vertically disposed parallel side folders, a reciprocating plunger movable between them, end folderspivoted between and transversely to the side foldersand on oppo-` site sides of the path of the plunger and counterweighted to turn and project normally inward into and transversely to the path of. an article on the plunger, the side folders extending at the ends beyond the pivots of the end folders, and stops for limitingthe'movement of the end folders.

16. 1n a wrapping machine the combination of opposing parallel side folders, one of which' is adjustable toward and from the other, a reciprocating plunger movable between them, and end folders pivoted between andtransversely to the side folders and on opposite sides of the path of the plunger and each provided with a. detachable folding plate, whereby the end folders may be provided with plates for wrapping articles of different sizes, the side folders extending at the ends beyond the pivots of the end folders.

17. 1n a wrapping machine the combinaguides. I tion of opposing parallel side folders, a reciprocating plunger movable between them,

' and end folders pivoted between and transversely to the side folders and on opposite sides of the path of the plunger, and ad just-able toward and from each other lengthwise of the side folders, the side folders extending at the ends beyond the pivots of the end folders.

18. In a wrapping machine the combinathrough the slots in the side folders, end v folders pivotally and slidably mounted on said rods between the side folders and tending to tip inwardly lat their upper ends into the path-of an article on the plunger, and a rightfand left adjusting screw connecting said heads.

19. In a wrapping machine the combination of vertically disposed longitudinally slotted side folders, a reciprocating plunger movable between them, heads adjustable to ward and fr om'each other lengthwise of the side folders, rods secured to said heads and passingl through the slots in the side folders transversely thereto, end folders pivotally mounted on said rods between the side folders and tending to tip inwardly at their upper ends into the path of an article on the plunger, parallel end guides located above and transversely to the side folders and connected and adjustable with' said heads and end folders, and means for adjusting said heads toward and from each other.

20. 1n a wrapping machine the combination with folding mechanisml comprising parallel side folders, end folders pivoted between and transversely tothe side folders and adjustable lengthwise thereof, a recipro-V cating plunger movable between the opposing side and end folders, a feed belt located on the upper side approximately in the plane of the plunger in its initial position,

longitudinal guides located above and on opposite sides of the feed .belt and converging toward the path of the'plunger, and

means for adjusting the converging ends of said guides toward and from each other.

21. In a wrapping machine the combinaflocated above and transversely 'to' the side folders andadjustable lengthwise thereof,

and a reciprocating pusher movable between land parallel with the end guides across the space between the side folders and provided with a detachable plate corresponding in length with the space between the end 22. 1n a wrapping chine the combina;

which is adjustable ltoward and from the" tion of folding mechanism comprising vertically disposed parallel' side folders, one of other for wrapping articles.v of dierent widths, a reciprocating plunger movable between said folders, a reciprocating pusher locate/5l. above and movable transversely .y to

the side folders, a lcam for advancing said pusher, a spring for.retracting-thetpusher,

and an adjustable stop for limiting the backward movement of the pusher approximately Y' in thel plane of one of the side folders.

23. ln a `wrapping machine the -icombination of folding mechanism comprising vertically disposed parallel side folders, one of which. is adjustable toward and from the other, a reciprocating plunger movable between said folders, l'means for lcmaiining a wrapped article' above said folders, a reciprocating side'tuclrer movable transversely to the side/folders between them and said conningmeans, a cam lfor advancing t-he tucker,` a -spring for ret-ranting the tuckei,

cent to the top and transversely to one of the side folders, a reciprocating pusher adapted p to transfer wrapped articles from the path of the. plunger to said'heating plate, a vertically adjustable and yielding presser movable toward and from said plate, and means for operating vsaid plunger, pusher and presser in proper sequence.

25. In a wrapping machine the combination of vertically disposed side folders and guides having outwardly yielding sections hinged at vtheir upper edges to the lower edges of said folders and guides, and a reciprocating plunger movable between said folders and guides;

i 26. In a Wrapping machine the combination with folding mechanism comprising vertically disposed parallel side folders and guides and a reciprocating plunger movable etween them, of a horlzontally disposed belt adapted to feed the articles to be wrapped upon the plunger in its initial position below said folders and guides, a back stop and guide pivotally supported below and yparallel with the side folder and guide between it and the plunger in its initial position on the opposite'side from the feed belt,

and means for adjusting the lower side of said back stop and guide toward and from the path of the plunger.

27. In a wrapping machine the combinai-,aearofa foldersand guides, and a horizontally and langularly adjustable back stop yand guide 'located below and' parallel with; the. side folder and guide on the opposite side of the path of the plunger from said conveyor.

28. In a wrapping machine the combination with folding mechanism comprising vertically disposed side folders and guides anda reciprocating plunger movable between them, of a' horizontally disposed conveyer for' feeding the articles to be wrapped to the plunger in its initial position below said folders and guides, a gate .movable vertically 4into and out of the path of the articles to the plunger adapted to be moved by the descent of the plunger into inoperative position, a spring connected with the gate and adapted to lift it into operative position with the initial lupward movement of the lunger, and a stop for limiting the upward movement of the gate.

29. In a wrapping machine the combination with foldin mechanism comprising vertically disposed folders and ides and a reciprocating plunger movab e between them, of a shelf located approximately in the plane of the plunger in its initial position below said folders and guides, a conveyer adapted to feed the articles to be wrapped across said shelf to the plunger in its initial position, a vertically movable ate between the shelf and the path of the p unger adapted to be moved by the plunger in its descent into inoperative position below the shelf, means tendin to lift the gate into operative position 4with the ascent of the plunger, a Guard located above and movable toward and from said shelf, a spring connected with and tending to move the guard downward into operatlve position, and a lever connected with said guard and adaptedby engagement with a part of the gate to lift the guard into inoperative position when the gate descends into inoperative position. l

30. In a wrapping machine the combination with folding mechanism comprising opposing parallel side folders, end folders adjustable toward and from each other between the side folders, and a reciprocating plunger movable between said folders, of wrapper supports located below and parallel with the side folders on opposite sides of the path of the plunger and adjustable lengthwise of said side folders, and means for feeding wrappers into proper position on said supports.

31. lin a wrapping machine the combination with folding mechanism comprising opposing parallel side folders, end folders ad justable toward and from each other befk l the side folders, and a reciprocating plunger movable between said-folders, of wrapper supports located below and parallel with the side folders on opposite sides of the path of the plunger and adjustable lengthwise of the side folders, and means. for feeding wrappers into position on said supports above the plunger in its initial position.

33. ln a wrapping machine the combination with folding mechanism comprising parallel side folders, end foldersadjustable l toward and from each other between and lengthwise of the side folders, and a reciprocating plunger movable up and down between said folders, of Wrapper supports lo' cated below and parallel with the side folders on opposite sides of the path of the plunger and adjustable lengthwise thereof, means for feeding wrappers into position on said supports above the plunger in its initial position, and a cutter for severing the paper into the required lengths .arranged transversely to the side folders and con-.

nected and adjustable 'with the wrapper supports.

34. In a wrapping machine'the combina-4 tion with folding mechanism' comprisin side folders, end folders adjustable towar i and from each other and a reciprocating plunger movable between said folders, of means 'for feeding wrappin paper into proper position between sai folders and the plunger in its initial position, a cutter or severing the paper into the required lengths adjustable toward and from the path .of the plunger, and means for operating the cutter. 4,

35. In a wrapping machine the combination with4 folding mechanism comprising side folders, end folders adjustable toward and from each other lengthwise of the side folders, and a reciprocating plunger movable between said folders,of means for feeding 'Wrapping paper into position between said folders and the plungerin its initial position, a cutter fomr Severin the paper into thel required length, adjustale toward and from the path, of the plunger and provided side folders.

.. its initial position and the folders, a cutter for severing the paper into wrappers of the required length adjustable lengthwise of the side folders toward and from the path of the plunger and provided with racks parallel with theside folders, a shaft provided with pinions meshing w1th said racks, means for turning saidshaft, means for locking itin different positions, wrapper supports located below the folders on opposite sides of the path'of the plunger and connected and adjustable with the cutter lengthwise of the 37. In a wrapping machine the combination with folding mechanism comprising folders adjustable for packages of different sizes and a reciprocating plunger movable between the folders, of paper feeding mechanism comprising a pair of rollers one of which is movable toward and from the other into and out of operative position, a rocker shaft having an arm provided with'an adjustable wiper, a cam .adapted to coperate with said wiper to shift themovable roller at the proper time into operative position, and means for rotating one of said rollers.

38. In a wrapping machine the combination with folding mechanism comprising `folders'adjustaible for packages of different` sizes and a reciprocating plunger movable between said folders, of paper feeding mechanism comprising. a pair of rollers one .of which is movable toward and from the other into and out of operative position, a rocker shaft carrying the movable rollerand provided with an arm, a cam coperating with 39. In a wrapping machine the combination with wrapper folding mechanism comprising folders adjustable toward and from each other for packages of di'erent sizes and a reciprocatingl plunger lmovable between said folders, of wrapper supports located on opposite sides of the path ofthe plunger adjacent to the folders, a pair of feed rollers one of which is movable toward' and from the other into and out of operative position for advancing the paper into proper position on said supports, means for varying the time of movement of one of said rollers toward the other, a cutter located between the feed rollers and folding mechanism and adjustable toward and from the path of the plunger for severing the paper into wrappers of the required length, a reel for holding a roll ofY paper, a air of slack rollers for drawing the paper rom the roll preparatory to its intermittent advance by the feed rollers to the folding mechanism, the upper slack roller being movable ver.- tically and resting normally on the lower roller which is removable for substitutingthereforl a roller of different size, and means for rotating said slack rollers.

40. In a wrapping machine the combination of wrapper folding mechanism comprising folders adjustable toward and from each other and a vertically reciprocating plunger movable between said folders, of wrapper supports located on opposite sides of the path of the plunger adjacent te the folders, feed rollers adapted to intermittently advance the wrapping paper into position on said supports, a cutter located between the feed rollers and folding mechanism and adjustable toward and from the path of the plunger, a paper guide connected and adjustable with the cutter, and a stationary paper guideoverlapping thead- 'ustable paper guide and bridging the space etween it andv said rollers.

41. 1n a wrapping machine the cembina-4 tion with folding .mechanism comprising,

. position to the feed rollers and the folding mechanism.

4-2.- In a wrapping machine the combination of means for folding a q uadrangular wrapper lengthwise over the top and sides of a package, means for simultaneously laying end folds with underlying' inturned triangular corner folds in thel wrapper over. the ends of the package from top to bottom,

-means for folding the edges of the end and inturned corner folds inwardly on the bot-v tom of thel package, and means for folding the edges of the side folds inwardly-onelover'the other and bot-hof them over the edges of the inturned' end folds on the bottom of the package. j

ln 4witness whereof l1 hereto my signature in presence of two witnesses.

V i i PETER F. MURPHY. ;4

Witnesses: I

Giras. L. Goss,

E. H. Ascm. 

